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SEO companies in Japan
Japan listings are in research. This guide covers what the market demands so you can brief an agency properly in the meantime.
Languages
Japanese
Currency
JPY (¥)
Domain convention
.jp (also .co.jp)
Search engines
Google, Yahoo! Japan, Bing
Browse every prefecture
Numbers show how many companies are currently listed. Empty prefectures are open — tell us who belongs there.
Japan coverage is in research. Region pages publish once the first listings are verified.
What Japan actually demands
Large, high-trust market where Yahoo! Japan still carries meaningful share alongside Google.
- Three writing systems plus loanwords mean one product can have four viable keyword forms.
- Content expectations skew toward detail, specification tables and visible company credibility.
- .co.jp requires a registered Japanese entity and reads as a strong trust signal.
- Native copywriting is mandatory; translation quality is immediately visible to buyers.
SEO companies in Japan: common questions
- How do you decide which SEO companies get listed in Japan?
- A company is listed when we can verify that it operates from a specific prefecture in Japan, that it delivers SEO as a core service rather than an upsell, and that its founding year, headcount band and pricing posture are documented publicly. Listings are compiled editorially — no company can buy an entry or a position.
- What is a normal SEO retainer in Japan?
- Retainer floors on this page are published in JPY and represent the minimum engagement each company accepts, not what a typical client spends. Screen on scope: monthly technical work, content volume, link acquisition and reporting cadence. Two identical floors can hide very different amounts of senior time.
- Should I hire an agency in my own prefecture?
- For local and multi-location search, a nearby agency that knows the regional press, directories and language nuance has a real advantage. For national, ecommerce or international programmes, discipline depth beats proximity. Because every listing is tied to its true operating base, you can filter deliberately either way.
- How often is the Japan directory updated?
- Market facts — language, currency, domain conventions, dominant engines — are re-checked on a fixed cycle, and each profile carries its own review date. New companies are added as research is completed rather than in bulk, so counts move gradually.